Re: [PATCH v2 1/7] KVM: MMU: optimize pte write path if don't haveprotected sp

[Avi Kivity]

On 05/18/2011 04:12 PM, Marcelo Tosatti wrote:
> On Mon, May 16, 2011 at 02:25:02PM +0300, Avi Kivity wrote:
> >  On 05/15/2011 06:20 PM, Xiao Guangrong wrote:
> >  >Simply return from kvm_mmu_pte_write path if no shadow page is
> >  >write-protected, then we can avoid to walk all shadow pages and hold
> >  >mmu-lock
> >
> >  Patchset looks like a very good cleanup (plus the nice optimization
> >  in patch 1).
>
> What case is patch 1 optimizing for?

Say, kvmclock updates.

--
error compiling committee.c: too many arguments to function

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